Ionograms from the World...

Juliusruh ionosonde data on international servers
GIRO - Global Ionospheric Radio Observatory
SWS - Space Weather Services (former IPS) - Select: ->Europe->Juliusruh

Selected International Ionosonde/Ionogram Link Pages
GIRO DIDB Ionosonde List
SWS - Space Weather Services (former IPS)
Ionosonde data in JAPAN
Swedish Ionogram Pages
NOAA/NGDC Ionosonde List (Boulder/CO)

Selected European Digisondes
Tromso (Norway)
Juliusruh (Germany)
Pruhonice/Praha (Czech)
Chilton(UK)
Dourbes (Belgium) - Digisonde
Rome (Italy) - AIS
Athens (Greece) - Digisonde
Observatori de'lEbre (Spain) - Digisonde

Ionosonde related projects with Juliusruh ionosonde data
TechTIDE - Project
TechTIDE - Warning System
NetTIDE - Project
NetTIDE - Warning System
DIAS - European Digital Upper Atmosphere Server

Ionogram Scaling Information
Ionosphere Alphabet - Meaning of the Letters after a Value (German Plaintext)
INAG - Publications from the IONOSONDE NETWORK ADVISORY GROUP
URSI Handbook of Ionogram Interpretation and Reduction
Australian Ionogram Scaling Training Material (~500kB)

Ionosphere Background & Useful Digisonde Ops Information
LDI - Lowell Digisonde International - Hardware
ULCAR Lowell - Software, Geophys Coefficients
SAO-Format (ULCAR Lowell)

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